Tourniquet



' April 3, 1934.

H. COHEN 1,953,074

TOURNIQUET Filed Nov. 12, 1931 642 i 1 du 6.

JNI/ENTOR.

r I I C'ohen 21 22 BY O O a A TTORNEY.

Patented Apr. 3, I934 PATENT OFFICE TOURNIQUET Harry Cohen, New York, N.Y., assignor to Milbert Company Application November 12, 1931, SerialNo. 574,636

5 Claims.

This invention relates to tourniquets.

The main object of the invention is to provide a device of this kindwhich is very simple, easily applied to the limb of the patient andextremely effective.

Another object of the invention is to provide a device of this kindwhich will partially constrict a limb of a patient so as to make theveins below stand out prominently for making a medical test.

Another object of the invention is to provide a device of this kindhaving means to regulate the pressure of the gripping members exerted onthe limb.

Another object of the invention is to construct the gripping members sothat they will not cut or pinch the fiesh of the patient.

Still a further object of the invention is to provide a ratchetmechanism for holding the gripping members in the desired lockedposition.

Other objects will appear as the disclosure progresses. The drawing isintended to merely indicate a possible embodiment of the invention. Itis obvious that the actual needs of manufacture may necessitate certainmechanical changes.

It is therefore not intended to limit the invention to the embodimentillustrated but rather to define such limits in the appended claims.

For a more general understanding of the invention attention is called tothe drawing. In the drawing like reference characters denote like partsthroughout the specification.

In the drawing:

Figure 1 is a front view of the tourniquet.

Figure 2 is a section substantially on line 2-2 of Figure 1.

Figure 3 is an enlarged section substantially on line 3-3 of Figure 1.

Figure 4 is a section on line 4-4 of Figure 1.

Figure 5 is a front view of a, modified form of the invention.

' morals 1 and 2 designate a set of Figure 6 is a section on line 66 ofFigure 5.

Figure 7 is a section substantially on line 7-7 of Figure 5.

Referring now to the drawing in detail, nu-

complementary members hinged together by the screw 3.

Each of said members comprises a handle portion 4 and 5 terminating atthe bottom into eyes 6 and 7 for the insertion of the fingers of theoperator and at the upper ends into curved gripping members 8 and 9adapted to fit the limb of the patient The tips 10 and 11 of thegripping members are bent in the reverse direction to the normalcurvature of the said members so straight gripping member 16 as not topinch the flesh Attached to the handle 12 adapted to co-operate thepurpose of locking thelimb of the patient.

or skin of the patient. 4 is an arc-like ratchet with the handle 5 forthe instrument around As noted in Figure 3 the ratchet is provided witha series of saw teeth 13 which engage with the handle 5. Theperpendicular portion 14 of the teeth as noted in Figure 3 are somewhatinclined so that the handle member will lock in place and thus avoid anyaccidental separation. The portion 15 of the handle 5 is somewhat thinso as to make same resilientat that particular place. Normally thehandle is tensioned against the ratchet so that it will lock itself inwith the ratchet teeth 13. Now when the said handle member is moved theresilient or thinned portion 15 will allow same to easily bend and clearthe teeth, thus making the instrument easily operable. The grippingmembers 8 and 9 are preferably wide and somewhat flexible so as not topinch the tissues or out the flesh. If desired they can be covered upwith rubber hose to give to the said members a pliable chest.

The modified form of the invention shown in Figure 5 is the same as thatshown in Figure 1 with the exception that the gripping member 16 leadingfrom the complementary member 17 is made straight while the grippingmember 18 leading from the complementary member 19 is curved similar tothe member 9. Numeral 20 designates the pivoting screw connecting thetwo complementary members 17 and 19 together, 21 and 22 the eyes and 23the arc-shaped ratchet for regulating the opening of the grippingmembers and keeping them in a set position. This form of the inventionis mainly adapted for operating on patients when lying in bed. The caneasily be pushed underneath the patients arm or leg without disturbingand without the necessity of raising his limb.

It will thus be seen that I have provided a simple and efiicienttourniquet which is easy to operate and which will not annoy or disturbthe patient. The device can be manipulated with the fingers of one handonly and locks itself up automatically in place. By moving the two eyestogether the two gripping members will simultaneously move together andvice versa, when the eyes are separated move away from each other.

Having described my invention, I claim:

1. In a device of the class described, the combination of twocomplementary members pivotally fastened together, gripping membersformed at the upper part of said complementary members, one of saidgripping members being straight and the other of said members beingcurved outwardly, handles at the lower ends of said complementarymembers, and means to fasten said handles together in a variety ofpositions.

2. In a device of the class described, the combination of twocomplementary members pivotally fastened together in the center,gripping members formed at the upper part of said complementary members,one of said gripping members being straight and the other of said mem-;bers being curved outwardly, the tip of said curved member bent in thereverse direction to the curvature of said curved member, the point ofsaid straight member extending beyond the said tip of the curved member,an arc-shaped ratchet attached to one of said handles and adapted toengage with the other of said handles.

3. In a device ofthe kind described, the combination of twocomplementary members pivotally fastened together substantially in thecenter, operating handles at the lower ends of said complementarymembers, curved gripping members at the upper part ofsaid complementarymembers, the tips of said curved gripping members bent in a reverseddirection to the curvature of said curved gripping members andoverlapping each other when the said curved gripping members are openedup to embrace a limb, and means to lock said curved gripping memberstogether in a variety of positions, said. means including a ratchetattached to one of the handles and adapted to engage with the otherhandle, a portion of the said last mentioned handle which engages withthe said ratchet being thinned.

4. In a device of the class described, the combination of twocomplementary members pivotally fastened together, gripping membersformed at the upper part of said complementary members, one of saidgripping members being straight and the other of said members beingcurved outwardly, handles at the lower ends of said complementarymembers, means to fasten said handles together in a variety ofpositions, said means including a ratchet attached to one of the handlesand adapted to engage the other one of said handles.

5. In a device of the class described, the combination of twocomplementary members pivotally fastened together, gripping membersformed at the upper part of said complementary members, one of saidgripping members being straight and the other of said members beingcurved out- I wardly, handles at the lower ends of said complementarymembers, means to fasten said handles together in a variety ofpositions, said means including a ratchet attached to one of the handlesand adapted to engage the other one of said handles, a portion of thelast mentioned handle which engages with said ratchet being thinned.

HARRY COHEN.

